Description: Double pinion hand drill reliable and operation Hollow handle for storing spare drill chuck (3/8 Chuck) 3 jaws keyless chuck for 1.5mm-10mm Suitable for drilling wood bamboo soft and thin metal sheet acrylic circuit board etc. No power supply required rotate speed and drilling hole position controlled by hand unfit for hard metal tile masonry and concrete. Specification: Material: 45# Steel Overall Dimension: Approx. 310x82x70mm/ 12.20x3.23x2.76 inch Package Includes: 1 Piece of Portable Hand Drill Kit